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Rust-GCC

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gccrs
GCC Front-End for Rust

C++ · 2945 stars
Rust-GCC.github.io
github pages for the Rust GCC project

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core

Rust-GCC/gccrs#4917 · 1 assignee · Opened Sep 18, 2026
Check that `#[derive(CoercePointee)]` items have at least one field Open

expansion good-first-pr

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Rust-GCC/gccrs#4916 · Opened Sep 18, 2026
Detect non-generic pointee types on `#[derive(CoercePointee)]` items Open

expansion good-first-pr

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4915 · Opened Sep 18, 2026
Add check for `#[repr(transparent)]` on `#[derive(CoercePointee)]` items Open

expansion good-first-pr

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Rust-GCC/gccrs#4914 · Opened Sep 18, 2026
mismatched types, expected ‘u64’ but got ‘u32’ Open

core

Rust-GCC/gccrs#4913 · 1 assignee · Opened Sep 18, 2026
mismatched types Open

Difficulty 4/5 3-5 days Newbie friendliness 50/100

Rust-GCC/gccrs#4904 · Opened Sep 17, 2026
Investigate proper Rust CFI implementation Open

codegen rust-for-linux

Difficulty 5/5 Over a week Newbie friendliness 35/100

Rust-GCC/gccrs#4876 · 1 reaction · Opened Sep 10, 2026
Follow up to 4735 Open

bug

Rust-GCC/gccrs#4849 · 1 assignee · Opened Sep 6, 2026
Handle `cfi_encoding` attribute Open

codegen rust-for-linux

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Rust-GCC/gccrs#4842 · Opened Sep 3, 2026
Handle `derive_coerce_pointee` feature and associated `derive(CoercePointee)` Open

rust-for-linux typechecking

Difficulty 5/5 Over a week Newbie friendliness 35/100

Rust-GCC/gccrs#4839 · 1 comment · Opened Sep 3, 2026
Handle arbitrary self types Open

codegen name resolution parser rust-for-linux typechecking

Difficulty 5/5 Over a week Newbie friendliness 25/100

Rust-GCC/gccrs#4838 · Opened Sep 3, 2026
Handle `used` built-in attribute Open

codegen rust-for-linux

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Rust-GCC/gccrs#4836 · Opened Sep 3, 2026
Implement `ExtractIf`/`extract_if` feature Open

rust-for-linux typechecking

Difficulty 5/5 Over a week Newbie friendliness 35/100

Rust-GCC/gccrs#4835 · 4 comments · Opened Sep 3, 2026
Compile `PLATFORM_INTRINSIC` ABI extern functions Open

codegen core

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4819 · 1 comment · Opened Aug 25, 2026
ICE `tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in type_hasher, at rust/backend/rust-compile-context.cc:` Open

bug

Rust-GCC/gccrs#4742 · 1 assignee · Opened Jul 31, 2026
ICE tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in build_array_type_1, async fn array Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 65/100

Rust-GCC/gccrs#4741 · Opened Jul 31, 2026
ICE in is_refutable, at rust/hir/tree/rust-hir-pattern-abstract.cc:287 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Rust-GCC/gccrs#4739 · Opened Jul 31, 2026
ICE in is_refutable, at rust/hir/tree/rust-hir-pattern-abstract.cc:285 Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Rust-GCC/gccrs#4738 · Opened Jul 31, 2026
ICE in is_refutable, at rust/hir/tree/rust-hir-pattern-abstract.cc:103 Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Rust-GCC/gccrs#4737 · 1 comment · Opened Jul 31, 2026
ICE in eval_component_reference, at rust/backend/rust-constexpr.cc , const casting Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Rust-GCC/gccrs#4734 · Opened Jul 31, 2026
ICE in as_string, at rust/typecheck/rust-tyty-variance-analysis.cc: recursive struct Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4733 · Opened Jul 31, 2026
ICE `failed to lookup hir item during refutability checks` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4732 · Opened Jul 31, 2026
Identifier variant of enum incorrectly triggers duplicate identifier binding error Open

name resolution typechecking

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Rust-GCC/gccrs#4725 · Opened Jul 28, 2026
ICE in insert_ast_item when the same crate is declared twice under different names Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

Rust-GCC/gccrs#4724 · 2 comments · Opened Jul 28, 2026
Double drop when `break` precedes a local declaration in the same scope Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4717 · Opened Jul 22, 2026
Make function-scope drop aligns to rustc Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

Rust-GCC/gccrs#4712 · Opened Jul 19, 2026
Failed to lookup type reference for associated type in where-clause bound Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Rust-GCC/gccrs#4708 · Opened Jul 16, 2026
Lang item attributes are not handled on enum variants Open

Rust-GCC/gccrs#4703 · 1 comment · 1 assignee · Opened Jul 13, 2026
Handle ambiguous glob import of `panic!` Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Rust-GCC/gccrs#4701 · 1 comment · Opened Jul 12, 2026
Invalid `extended_key_value_attribute` error Open

expansion name resolution parser

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4690 · 3 comments · Opened Jul 7, 2026
E0428 when enum variant and generic parameter share the same name Open

name resolution subset-error

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4687 · Opened Jul 7, 2026
segfault pp_token_begin_quote Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4677 · Opened Jun 30, 2026
ICE in find_value_definition, at rust/checks/lints/rust-lint-marklive.cc match guard with unknown enum variant Open

bug missing-lint name resolution

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Rust-GCC/gccrs#4670 · 1 comment · Opened Jun 29, 2026
ICE in compile_function fn that calls a main() with arguments Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Rust-GCC/gccrs#4669 · Opened Jun 29, 2026
ICE in build2, at tree.cc, recursive const fn Open

bug const-generics

Rust-GCC/gccrs#4667 · 1 assignee · Opened Jun 29, 2026
C-variadic function definitions are rejected, blocking varargs_without_pattern lint Open

missing-lint parser

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4657 · 1 comment · Opened Jun 28, 2026
Associated-type where clause is only parsed in the deprecated position, blocking deprecated_where_clause_location lint Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

Rust-GCC/gccrs#4656 · Opened Jun 28, 2026
Test-harness attribute macros are stripped before HIR, blocking duplicate_macro_attributes lint Open

missing-lint

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4655 · 1 comment · Opened Jun 28, 2026
Single argument `assert!` message Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Rust-GCC/gccrs#4635 · Opened Jun 27, 2026
ICE in struct_field_expression (match) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Rust-GCC/gccrs#4619 · 1 reaction · Opened Jun 26, 2026
ICE: NR2: segfault with edition 2018 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Rust-GCC/gccrs#4618 · Opened Jun 25, 2026
segfault `Rust::TyTy::VariantDef::as_string` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 70/100

Rust-GCC/gccrs#4617 · Opened Jun 25, 2026
segfault BaseType::get_kind() Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4616 · Opened Jun 25, 2026
ICE in parse_reg_operand_const, at rust/expand/rust-macro-builtins-asm.cc (globalasm) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Rust-GCC/gccrs#4615 · Opened Jun 25, 2026
ICE in get_ast_crate_by_node_id_raw, at rust/util/rust-hir-map.cc Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4614 · Opened Jun 25, 2026
ICE tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in get_qualified_type, at tree.cc Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Rust-GCC/gccrs#4613 · Opened Jun 25, 2026
ICE in TypeCheckImplItemWithTrait Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Rust-GCC/gccrs#4612 · Opened Jun 25, 2026
ICE in lookup_label_temp_var, at rust/backend/rust-compile-expr.cc Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

Rust-GCC/gccrs#4611 · Opened Jun 25, 2026
ICE when expanding repeating macro to nothing Open

expansion

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Rust-GCC/gccrs#4601 · Opened Jun 24, 2026
Refactor: Use native TyTy subsystem for intrinsic signature validation Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4596 · Opened Jun 23, 2026

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